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tower mounted FRS radio, would this be legal?

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Old 02-08-2011, 03:39 PM
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Default tower mounted FRS radio, would this be legal?


To mount a FRS radio up on a rooftop, tree or tower and run audio to the radio.
Would this be legal?

The radio is not altered or mondified in any way, it just has a really long microphone cord (or cat5 streaming audio).

And if this is legal then would it be legal to stand in front of a parabolic dish and transmit, or mount a radio on a tower with a v-reflector behind it?

And for licenced GMRS, would this not make the best cheap base setup ever.
I have talked to other tower crews from miles away using FRS while up on top the tower.

It might violate the spirit of the law to mount a FRS walky talky at 400' but unless I misread something it shoulnt violate the letter of it.


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Old 02-08-2011, 05:28 PM
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Rule of the Land : If it's not illegal, it's legal.

Have at it, but internal modifications may make the radio no longer type accepted.
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Old 02-08-2011, 05:33 PM
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Why not use something like this and remote the antenna?

Audiovox FRS Base Station with NOAA Weather Alert
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Old 02-08-2011, 06:18 PM
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because its indoors where the signal is just going to reflect, scatter and difract. It would be luck if it reached the end of the driveway.

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Old 02-08-2011, 06:29 PM
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Become a ham. Tech license obtained with brain tied behind back. General obtained just as easy. Full legal limit power at your disposal. Off the shelf highly capable gear. UHF band is there if that is what you like. A child old enough to operate a radio can learn the material and pass the test.
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Old 02-08-2011, 09:28 PM
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Quote:
Originally Posted by Wire Weasel View Post
Become a ham. Tech license obtained with brain tied behind back. General obtained just as easy. Full legal limit power at your disposal. Off the shelf highly capable gear. UHF band is there if that is what you like. A child old enough to operate a radio can learn the material and pass the test.
I got my ham ticket a long time ago but full power and off the shelf gear (what i could afford) got boring after awhile.

Good luck licensing a scout troop, hunting club, 4x4 convoy or my wife for radio amateur. Sure am glad there is CB, murs, FRS/GMRS and the 900mhz ISM band.

These FRS/GMRS blisterpack hybrids are next to useless. The most expensive units with 37, 45, 50 mile ranges, range about the same as earshot when used inside a vehicle or building.

I find the range of my old TRC-2xx handheld CBs with the big telescopic "eye poker" antenna set on lo-power superior to the most powerful FRSGMRS hybrid I own.

Because of this alot of these end up at yard sales and thrift stores often under $5.

I actually tried this the other day putting a radio on top my truck with zip ties and made a cable connecting it to an amplified speaker and mic, and had friend stand outside with the other radio. On the GMRS I had clear coms for a couple of miles but didnt test it any further out.

Not bad for a com system in which the alkaline batteries are the most expensive component, that does not poke your eye out like the CB.

Some talk about putting a connector jack on their FRS GMRS hybrids, but external antennas and low loss coax cost too much, not to mention a major pita re-engineering the plastic shell to accommodate a bnc connector.

I tried that some years ago and it worked pretty good until the antenna fell off taking part the circut board with it.

So to me it makes more sense to move the cheap radio and make a longer mic cord. With GMRS you got tone codes, there is little need to chance channels. And for a battery make a dummy pack out of wood and turn it off from inside the vehicle. And as a plus you get a free ground plane by mounting it up there.

And the best part for hams is, this is legal, so long as you use channels 1-14

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Old 02-09-2011, 05:46 AM
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Worrying about the legalities of using ham gear to operate with greater power and range on MURS or FRS/GMRS freqs is the absurd part.....frankly. There is NO enforcement. So there is NOTHING to worry about.
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Old 02-09-2011, 06:53 AM
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I was considering a similar idea with a small type accepted FM broadcast band transmitter. It already takes RCA "consumer" level audio in. The plan was to keep the original wire antenna to keep it legal and feed it power and audio up on the tower.

I loaned the unit I had to a friend and he reversed the DC polarity, killing it dead.

Later I found out that the type acceptance for this thing was most likely bogus.

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